Process for preparing urea by steps with differentiated yield, and relevant implementations also on existing plants
Process for preparing urea by steps with differentiated yield, and relevant implementations also on existing plants
- CN 1,052,975 C
- Filed: 10/04/1991
- Issued: 05/31/2000
- Est. Priority Date: 10/05/1990
- Status: Active Grant
- EN CH
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- Pin
